Spring-barrel for talking-machine motors.



B. G. ROYAL. SPRING BARREL FOR TALKING MACHINE MOTORS.

APPLICATION FILED MAR. 16, 1914.

Patented Feb. 8, 1916.

INVENTOR WITNESSES citizen Ofthfi- United. States, and a resident pf-the city 'o'firCam den, State of New Jersey," have invented oer-tam new and useful Improvements in-;Spring-Barrels for Talking, Machine Motors an'd the like, of which the following is a specification reference being had'to' the accompanying drawing.

Y the spring barrels .at-present inuse it is customary to maintain the head in position within-the? body of the barrel solely by the. friction of the edge of the head against the interior ofjthe bbdy; This method is open 'tolnume'rous objections, among which may be mentioned the tendency of the head to become 'loosened within thebody, thus caus- 'iDgI- E L" r8ftle;- the frequent disalinement of fthehead whereby undue friction upon the mainsha'ft of'themotor is setup, and inter- ,ference with, the Operation of the motor us edby the head working loose or becom- --ingrdisalinedarrd' rubbing against the botl in of the adjacentbarrel. In addition to 1th cf-disadvantages may be mentioned the dificulty ofw'ithdrawing the head from the body, of the barrel without the use of special to ols, and; the liability of any-lubricant,

may be contained. in the barrel, leakttheJedge of the head, if the latter oosened in the body;

the principal obj ectsof my inveneto provide improved means for ainin-guthe head of a' spring barrel, a ale for use in spring motors for talking :machines or'tlie like, in fixed relation with -xthe-barrel" body 'while permitting, when desired, the r'eadyand quick removal of the ,head fromthe body; to provide improved ttg meanscf this character which shall prevent thelhead from getting out of alinement with lllh body,' ,andto-provide means for I Qinaintaining', the head in position in the -hcdy, which willpermit the removal of the f headftherefrom without the use ofv special Ito'ols. Y I l' QFurther. objects .of'imy invention are to' .provide improved means for lflfiifitainirig the head inposition in a spring barrel suitable foruse .in motors for. talking machines heap to constructfwhich may be easilymacipulated' by. one, unfamil ar w th mechani- .f( levices, and w'hlch maybe employed in fen, new JERSEY, ASSIGNOR ro Specification of Letters Patent, Application filed Ill/[arch 1e,

"erably in a manner hereinafter described .may be located a plurality of 'spring barrels the like whmh shall be simple and vrc'ron TALKI G .QFAiQ'Y, A CORPORATION" OF NEW JERSEY.

creme-Banner roe TALKING-MACHINE, MOTORS.

Patented Feb. a, rare. 1914. seria1uo.s24,91s.

spring barrels suitable for use in talking machine motors as at present constructed.

My invention further includes all of the various other novel objects and features of construction and arrangement hereinafter more definitely specified.

Referring to the drawing, Figure 1 thereof, 1s a side-elevation of a spring motor suitable for use in a talking machineor the like in which spring barrels, embodying one form of my invention are employed; Fig. 2 1s a central vertical section of one of the barrels removed from the motor showing the spring contained within the barrel togcther with its attendant parts, as well as a portion of the main shaft of the motor in elevation; Fig. 3 is an end elevational vlew of a similar spring barrel; and Fig. 4:

an enlarged, fragmentary, vertical section. ofa portion of the barrel showing certain details of scribed. v

The motor, shown in Fig. 1, may consist of a frame 1', which may be attached to a my invention hereinafter deportion 2 of the cabinet of a talking machine by means of suitable screws 4 passing through'the cabinet and threaded into suitable apertures in the frame. Depending from the frame are the brackets 6 and 7- suitably positioned thereon to support the main shaft 8, and provided with suitably disposed apertures in which the said shaft may be journaled. On the outside of bracket 7 may be pivoted a suitable paw'l"10 by means of apivot 11 rigidly'attached to the bracket, the teethof the pawl engaging a ratchet wheel 13 suitably attached to the main shaft and preferably fixedly secured thereto by means of the locknutl5 in the usual man'; er.- Threads 17 formed upon the projecting end of the main shaft may be provided for the attachment of awinding I crank, not shown, by which the main shaft maybe rotated in one direction, its rotation in; the; other'direction' being prevented by the engagement of the pawl 10 with the teeth of the ratchet wheel '13.

Mounted ;upon the main shaft 8, pref- 20 and 21, two barrels being illustrated in thejtype of motor shown in the drawing. a 1 although any number of barrels desired may be employed.,' Each barrel may pref- I erably consist of a cylindrical cup shaped -body having a bottom frictionally upon the method by which the are of attachment however forming no part of the present invention, and may be provided h 38 operative with a central cylindrical aperture of a suitable diameter to form a nice working fit upon the main shaft 8,' as clearly shown in Fig. 2. I 4

Within the spring barrel body may be located the flat helical spring 30, the outer end of which is preferably. attached to the. inside I of the body by means of a rivet 32, the inner. end being attached by means of a similar rivet33 to a cylindrical sleeve 35 having a central aperture also forming a good working fit upon in the main shaft 8. The sleeve 35 may preferably be of such length that one end, when the sleeve is. in position within the barrel as shown in Fig. 2, will be adjacent the inner end of'the collar 27 and the other end will project somewhat beyond the head 25. This latter end may be provided with suitable recesses to engage with suitable dogs 40 formed upon the collar 27 of an adjacent barrel, or the end of the sleeve maybe formed in any other desired manner depending upon the method of attachment used between the several spring b'alrrels when the motor is assembled.

7 At the open end of the body the diameter may be somewhat increased, preferably by forming a suitable offset in the sides 24 so that a shoulder 42 is formed upon the inside of the body, against which the head 25,

which may preferably consist of a flat cirequal to that v tion being preferably shown in Figs. 2 and 4.

of the 'interior of the offset may rest, the offset porof such length that itwill extend somewhat beyond the head 25 when the latter is in position asclearly cular plate portion of the body,

In the center of the head 25 may be lo-- cated a suitable circular aperture for 'the reception ofthe flange 50. offset from the collar 51 and frictionally retained'within the aperture in a mannersimilar'fto that hitherto described in reference to the collar 27, this collar 51 havingla centralxcylindrical apertureof a somew at lar erdiamet'er than the main shaft 8 and suite lefor the reception such method spring a diameter approximately of the'projecting end of the sleeve 35. At

a suitable distance from the shoulder, de-

;pending upon the thickness of the head-25,

"lar material, is adapted to engage. This ring may preferably be of a size and diameter to be readily sprung into and engage within the groove 47 best shown in Fig. 4, in which posi-. tion the ends of the ring 60 and 61 will bein approximate contact'as shown in Fig. 3. In this figure is also shown in broken linesa portion of the ring just before it is completely sprun 47, the rest 0 the ring having been already introduced into place within the groove.

into place within the groove The method ofassembling the spring bar rels with theiratteiidant parts is as follows: The collars 27 and'51, having been afiixed respectively to' the body of thebarml and to the head .thereof in anydesired manner,- the ends of thespring may be attached to. the inside of the body and to the outside of the sleeve 35 by means of the rivets 32 and 33 whereby the spring willbe retained in positionwithin the barreL. The

head 25 may now be placed in the offset portion of the body, in which position it rests against the shoulder 42 and the spring ring 58 forced into. place within'the groove 1n which position it will bear against the surface of the head as shown in Fig. 4. The barrels now-may be slipped-upon the main shaft 8 and the motor itself assembled in the-usual manner.

If desired, one of the vspringbarrels may be provided with a plurality of bosses 70 upon its bottom extending outwardly there-' from and adapted .to support the worm wheel-71 which maybe suitably attached to the bosses'by rivets '73 or otherwise. This worm wheel is adapted to engage with a suitable worm, not sfigwn, formed uponthe driving shaft 7 5 --;whichmay extend upwardly through the framed and also through. the cabinet 2 in the well-known manner.

It be evidefit that in a spring barrel embodying my inventlon, the head 25, will be fixedly retained in positionwithin the body portion of the barrel, and will always maintain 'a parallel relation with the bottom 23 thereof whereby the a ertures in the collarsfattached respective y, to the head25 and to the bottom23 .wi'll =always be maintained in erect alinement, thereby permitting the mam shaft 3 to rotate freely-in said apertures. Moreover, .there will be no danger of thehead becoming displaced the body in such unanner that it may drag against the. bottom of the adjacent spring barrel during the operation of the motor.

o as other ha d, whenfit is desired a; re-

move the spring from the barrel for the purpose of repairs or replacement, the'same readily accomplished by one not skilled in. the use of tools merely by'forcing the spring ring 58 out of the groove 47 by means of some suitable instrument, such as a screw-driver, after whichthe head 25 may desired to fill the'spring barrel with a liquid readily be removed. Furthermore, if it be or other lubricant for the purpose. of increasing the efliciency of the motor, the same may be readily done without danger of the contents leaking out, since at all times the head will be held tightly in position against the shoulder 42 whereby any leakage of liquid or other material contained within the barrel is prevented.

I do not desire to limit myself to the exact details of construction andfarrangement of the various parts of that form of my in- I vention whichll have illustrated"and described herein, as it will be evident that various changes may be made in the details of the device'without departing from the spirit and scope of the invention-as defined in the appended claims.

Having thus described my invention, 1-

claim and desire to protect by Letters Patent of the United States:

1. A spring barrel for a talking machine motor or the like comprising a cup-shaped body portion, a circular head and a split ring, said ring being operative to maintain said head ithin said bodyportion.

2. A spring ba'rrel for a talking machine ,motor or the, like comprising a cup-shaped body portion having a shoulder formed upon its interior, a circular head adapted to rest against said shoulder, and a split ring operative to engage the interior-of said body portion adjacent said head.

3.. A spring barrel for a talking machine 7 motor orthe like comprising a cup-shaped body portion'having a groove formed upon its interior, a circular head adapted to fit Within saidbody portion and a splitring operative to engage within said groove.

4. A spring barrel for a talking machine motor or the like comprising a "cup-shaped body portion having an ofi'set adjacent its "open end, a shoulder upon the interior of said body, a circular head adapted to rest against said'shoulder, and a split ring operative to engage within said body portion adjacent said head. p

5. In a spring barrel for-a talking machine motor or the like the combination with a cup-shaped body portion having a peripheral groove upon its interior adjacent its open end, and a shoulder formed upon the interior of said body portion; of a circular head adapted to rest against saidsh'oulder and a spring ring adapted to engage said groove and operativeto maintain said head against said shoulder.

6. In a springv barrel for atalking chine motor or the like, the combination' with a body portion, of a flat helical spring coiled within said body portion, a sleeve, a collar inv permanent relation with said body portion, a head, a collar in permanent relation with said head and forming a bearing for one end of said sleeve, and a spring ring operative to engage within said body.

spring being'attached to said sleeve and the. other end to said body, and a split spring ring adapted to engage within said groove to maintain said head within said bod -8. In a spring barrel for a talking machine motor or the like, the combination with a body portion having an offset adja'cent its open end, of a head adapted to engage within said bodyportion and means expandible in a plane normal to the central longitudinal axis of said body portion operative to maintain said head within said body portion. 4

9. In a spring barrel for a talking machine or the like, the combination with a cup-shaped body portion having an ofiset adjacent its open end providedwith an in- 'terior annular groove, of a circular head operative to engage within said ofi'set, and means expandible in a plane normal to the central longitudinal axis of said .body portion operative to engage within said groove.

In witness whereof, I have.hereunto set my handthis 12th day of March, A. D. 1914.

BELFORD G. ROYAL.

Witnesses JAMES W. OWEN, C ARLES F. WILLARD. 

